An Approximate Theory for the Neutron Slowing Down and Propagation in the Field of Gravity
作者:
NeymotinE.,
期刊:
Nuclear Science and Engineering
(Taylor Available online 1980)
卷期:
Volume 75,
issue 2
页码: 133-139
ISSN:0029-5639
年代: 1980
DOI:10.13182/NSE80-A21302
出版商: Taylor&Francis
数据来源: Taylor
摘要:
AbstractAn approximate form of the transport equation is used to investigate stationary and time-dependent neutron slowing down and propagation in the field of gravity. The approximation is based on the expansion of theδfunction of the transfer function in a power series of a small parameter s, the ratio of the neutron to atom masses.It is shown that the s and s2approximations in the stationary neutron slowing down problems are connected with Wigner and Grueling-Goertzel approximations. A simple formula is given for time-dependent neutron slowing down.The influence of the field of gravity on the operation of a reactor and on the propagation of ultra cold neutrons is studied in the point-energy approximation. Also investigated is the neutron space-energy distribution in the field of gravity.
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